Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842967 | Alkaline earth-oxyhalide electrochemical cell for low temperature use | Charles W. Walker, Jr. | 1989-06-27 |
| 4816080 | Method of washing solids with liquified gases | Charles W. Walker, Jr., Robert J. Mammone, William L. Wade, Jr., Sol Gilman | 1989-03-28 |